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A. Evaluate the algebraic expressions
Let a = 4, b = -3, c = 0.6 , x = -3, y = 0.4

1. 5abc + bc - a
2. bxy + 2ab - ay

B. Perform the indicated operations
1. . (2x4 – 5x2 + 4) + (5x3 – 2x2 – 5)
2. (2x3 – 7x2 + 3x – 8) –(6x3 + 3x2 +5x – 7)
full answer po ty!!